The hook is ment so you can hang the whole kit to a closet or something (it's a toiletry bag) but you can put it in the rear pouch (where the FA-book and notepad are stored)so it isn't visible.

Size: 30x25x12cm.
Weight: I think about 3pounds

About the field-dressings: I have purchased a couple of these:

http://www.tacmedsolutions.com/07/products/product_detail.php?prod_id=3

These bandages are basically the replacement of the israeli-bandages.